EP 2359174 B1 20190417 - OPTICAL CABLE WITH DRY CORE AND DRY BUFFER TUBES
Title (en)
OPTICAL CABLE WITH DRY CORE AND DRY BUFFER TUBES
Title (de)
OPTISCHES KABEL MIT TROCKENKERN UND TROCKENPUFFERRÖHREN
Title (fr)
CÂBLE OPTIQUE À COEUR SEC ET TUBES TAMPONS SECS
Publication
Application
Priority
US 2008086062 W 20081209
Abstract (en)
[origin: WO2010068196A1] An embodiment includes an optical fiber cable comprising at least one buffer tube (12) that includes a plurality of water-blocking plugs (18a, 18b) and an optical fiber (14). The water-blocking plugs can be spaced along the buffer tubes, substantially filling the cross-sectional space within the buffer tube not already filled by the optical fiber. The water-blocking plugs can provide a stronger bond between the optical fiber (s) and the inner tube. This is reflected by a high normalized pullout force for the optical fiber, such as, above 5.0 N/m. Yet, the resulting fiber optic cable does not suffer from problems associated with a higher pullout force, such as attenuation.
IPC 8 full level
G02B 6/44 (2006.01)
CPC (source: EP US)
G02B 6/44384 (2023.05 - EP US); G02B 6/4405 (2013.01 - EP US); G02B 6/4411 (2013.01 - EP US); G02B 6/4486 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2010068196 A1 20100617; EP 2359174 A1 20110824; EP 2359174 B1 20190417; ES 2735999 T3 20191223; US 2011293230 A1 20111201; US 8660394 B2 20140225
DOCDB simple family (application)
US 2008086062 W 20081209; EP 08876499 A 20081209; ES 08876499 T 20081209; US 200813133571 A 20081209